Lens barrel



FIG. 1 is a front elevational view of a lens barrel showing the new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a magnified top plan view thereof; and,

FIG. 5 is a perspective view thereof.

The left side elevational view is a mirror image of FIG. 2.

The dash-dot-dash line depict boundaries of the claim that form no part of the claimed design. All other broken lines depict parts of the lens barrel that form no part of the claimed design.

The portions of the design shown in broken lines having unequal segments illustrate the boundary of the claimed design and form no part of the claimed design. 

CLAIM The ornamental design for a lens barrel, as shown and described. 